Granted Patent
Utility
US 5,166,909 · App. 07/166,761
Method of seismic exploration using elliptically polarized shear waves
Inventors:
Jack H. Cole, John S. Gergely
Patented Case
View Patent ↗
Granted: Nov 24, 1992
Filed: Mar 3, 1988
Inventors
Jack H. Cole
John S. Gergely
Assignee (at issue)
Conoco Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.